ASTROSAT CZTI

Data Quality Report

Orbit 14753

Creation date: 2024-06-27T16:59:06.065000
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A04_203T01_9000002180_14753cztM0_level2.evt modeM0/AS1A04_203T01_9000002180_14753cztM0_level2_quad_clean.evt
Size (bytes)776,635,20086,388,480
Size740.7 MB 82.4 MB
Events in quadrant A11,271,766502,274
Events in quadrant B3,884,579546,884
Events in quadrant C4,317,154534,317
Events in quadrant D3,559,263529,399

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0385162
B0161751
C0178711
D0155271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7214251834.904353%
B72142152.980316%
C7214881.219850%
D7214851.178264%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7545 7215 2058 2058 27.28% 28.52%
B 7545 7215 124 124 1.64% 1.72%
C 7545 7215 15 15 0.20% 0.21%
D 7545 7216 41 41 0.54% 0.57%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 15 8128058 50122.23 791 775 162.1
A 12 189 63984 389.82 791 775 162.1
A 9 143 17442 102.79 791 775 162.1
B 4 142 384533 2294.19 870 849 167.2
B 0 229 35294 205.96 870 849 167.2
B 0 197 19575 111.97 870 849 167.2
C 3 233 888877 4467.48 851 855 198.8
C 0 207 73510 365.51 851 855 198.8
C 4 254 23009 111.45 851 855 198.8
D 2 136 146539 657.13 855 830 221.7
D 10 70 56203 249.72 855 830 221.7
D 2 120 45137 199.82 855 830 221.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter